Finding the Fourth Proportional to 3,718.96, 5,131.88 and 2,146

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.96 : 5,131.88 = 2,146 : x
2. Step 2: Convert to fraction form
   3,718.96/5,131.88 = 2,146/x
3. Step 3: Cross multiply
   3,718.96x = 5,131.88 × 2,146
4. Step 4: Simplify right side
   3,718.96x = 11,013,014.48
5. Step 5: Solve for x
   x = 11,013,014.48/3,718.96
6. Step 6: Final answer
   x = 2,961.32